首页|Efficient simultaneous removal of diesel particulate matter and hydrocarbons from diesel exhaust gas at low temperatures over Cu-CeO2/Al2O3 coupling with dielectric barrier discharge plasma

Efficient simultaneous removal of diesel particulate matter and hydrocarbons from diesel exhaust gas at low temperatures over Cu-CeO2/Al2O3 coupling with dielectric barrier discharge plasma

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
Diesel particulate matter(DPM)and hydrocarbons(HCs)emitted from diesel engines have a negative affect on air quality and human health.Catalysts for oxidative removal of DPM and HCs are currently used universally but their low removal efficiency at low temperatures is a problem.In this study,Cu-doped CeO2 loaded on Al2O3 coupled with plasma was used to enhance low-temperature oxidation of DPM and HCs.Removals of DPM and HCs at 200 ℃ using the catalyst were as high as 90％with plasma but below 30％without plasma.Operando plasma diffuse reflectance infrared Fourier transform spectroscopy coupled with mass spectrometry was conducted to reveal the functional mechanism of the oxygen species in the DPM oxidation process.It was found that Cu-CeO2 can promote the formation of adsorbed oxygen(M+-O2)and terminal oxygen(M=O),which can react with DPM to form carbonates that are easily converted to gaseous CO2.Our results provide a practical plasma catalysis technology to obtain simultaneous removals of DPM and HCs at low temperatures.

diesel PMplasma catalysisCu-CeO2/A12O3DRIFTS-MSsynergy effect

任保勇、方世玉、张甜甜、孙燕、高尔豪、李晶、吴祖良、朱佳丽、王伟、姚水良

展开 >

School of Safety Science and Engineering,Changzhou University,Changzhou 213164,People's Republic of China

School of Environmental Science and Engineering,Changzhou University,Changzhou 213164,People's Republic of China

Key Laboratory of Advanced Plasma Catalysis Engineering for China Petrochemical Industry,Changzhou 213164,People's Republic of China

国家自然科学基金国家自然科学基金

1207503722206013

2024

10.1088/2058-6272/ad1572

等离子体科学和技术(英文版)
中国科学院合肥物质科学研究所 中国力学学会

等离子体科学和技术(英文版)

EI
影响因子：0.297
ISSN：1009-0630
年,卷(期)：2024.26(5)
  • 55